CN1657799A - Damper with flexible guiding damping unit - Google Patents
Damper with flexible guiding damping unit Download PDFInfo
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- CN1657799A CN1657799A CN2005100084578A CN200510008457A CN1657799A CN 1657799 A CN1657799 A CN 1657799A CN 2005100084578 A CN2005100084578 A CN 2005100084578A CN 200510008457 A CN200510008457 A CN 200510008457A CN 1657799 A CN1657799 A CN 1657799A
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- push rod
- buffer
- housing
- central axis
- axis line
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- 238000013016 damping Methods 0.000 title claims abstract description 47
- 238000005406 washing Methods 0.000 claims abstract description 8
- 239000000872 buffer Substances 0.000 claims description 94
- 230000000694 effects Effects 0.000 claims description 7
- 238000001035 drying Methods 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 11
- 230000005284 excitation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000036316 preload Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 230000037230 mobility Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/08—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other
- F16F7/09—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other in dampers of the cylinder-and-piston type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Vibration Dampers (AREA)
- Axle Suspensions And Sidecars For Cycles (AREA)
- Vibration Prevention Devices (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Springs (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Platform Screen Doors And Railroad Systems (AREA)
Abstract
In a damper, in particular for spin-drying cylinder washing machines, it is provided, with a view to obtaining low-noise and low-wear guidance of a tappet in a casing, that the damper comprises a guiding damping unit which damps any deflections of the tappet in the radial direction and centers the tappet in the casing.
Description
Technical field
The present invention relates to a kind of especially for the buffer that comprises a flexible guiding damping unit in the rotation drying formula washing machine.
Background technique
For example by the buffer of the known described type of DE 19615010 A1.Owing to make cheaply, in the sort buffer device, between push rod and housing, have undesirable gap.The washing machine that comprises the sort buffer device can be owing to the ram impacts housing sends undesirable noise when operation.In addition owing to can reduce the working life of the described buffer of wearing and tearing that strengthens between push rod and the housing.
Summary of the invention
An object of the present invention is, improve the buffer of the described type of beginning like this,, can make cheaply simultaneously to guarantee low noise, the described push rod of low wearing and tearing ground guiding in described housing.
Described purpose realizes by following feature, comprising: one is essentially the housing of tubulose, and this housing has an end and the free end that a longitudinal central axis line and is positioned at the push rod side; A push rod that is directed in described housing and stretches out from the end of described push rod side movably, this push rod have a longitudinal central axis line and an end and a free end that is positioned at enclosure interior; Be installed on the free end of housing and the fastener on the free end of push rod; A friction buffer unit that is used between housing and push rod producing a given friction buffer effect; With one be used for push rod is cushioned guiding damping unit with centering with respect to any lateral shift of the longitudinal central axis line of housing.Core of the present invention is, to buffer one guiding damping unit is set, and any radial deflection of this guiding damping unit meeting attenuation buffer also makes push rod centering in housing.
Description of drawings
By below with reference to accompanying drawing to obtaining other features and advantages of the present invention in the explanation of five exemplary embodiments of the present invention, wherein:
Fig. 1 illustrates one first embodiment's of a tumbling-box washing machine that has a buffer schematic elevational view;
Fig. 2 illustrates the longitudinal sectional view of the buffer of Fig. 1;
Fig. 3 illustrates the perspective view of guiding damping unit of the buffer of Fig. 2;
Fig. 4 illustrates the plan view of the guiding damping unit of Fig. 3;
Fig. 5 illustrates one second embodiment's of a buffer longitudinal sectional view;
Fig. 6 illustrates the perspective view of guiding damping unit of the buffer of Fig. 5;
Fig. 7 illustrates the plan view of the guiding damping unit of Fig. 6;
Fig. 8 illustrates one the 3rd embodiment's of a guiding damping unit plan view;
Fig. 9 illustrates the perspective view of the guiding damping unit of Fig. 8;
Figure 10 illustrates one the 4th embodiment's of a guiding damping unit plan view;
Figure 11 illustrates the perspective view of the guiding damping unit of Figure 10;
Figure 12 illustrates one the 5th embodiment's of a guiding damping unit plan view; With
Figure 13 illustrates the plan view of the guiding damping unit of Figure 12.
Embodiment
Describe one in detail below in conjunction with Fig. 1 to 4 and comprise a buffer according to one first embodiment's guiding damping unit.One roller washing machine comprises a vibration wash 2 that has a drive motor 3, and described drive motor activates a cleaning-drum (not being shown specifically) by a band drive unit 4.To in the following detailed description of by two, buffer 5 described vibration wash 2 are bearing on the ground bottom frame 6.Described in addition wash 2 can be suspended on the described frame 6 quiveringly by means of spiral stretching spring 7.Therefore described wash 2 is combined with described buffer 5 and described spiral stretching spring 7, constitutes one thus and is contained in being used in the frame 6 and is buffered in the spring-buffer system of any energy imbalance that the drying work of cleaning-drum occurs.
Each buffer 5 comprises that one is essentially the housing that has a longitudinal central axis line 98 of tubulose.The housing of tubulose is interpreted as to have the particularly housing of rectangular cross-sectional shape of circle and non-circular transverse cross-section.The free end 10 of described housing 8 is by a bottom 11 sealings.Be fixed with one first fastener 12 on the outside of described bottom 11, described first fastener comprises that a clutch shaft bearing 13 and is fixed on the bearing bush 14 of bearing 13 inboards.Described buffer 5 is installed on the described frame 6 by means of described first fastener 12, thereby can pivot around a pivot axis 15 that is parallel to the spin axis 16 of described cylinder with respect to described wash 2.Described buffer 5 also comprises a push rod 17, and described push rod has a longitudinal central axis line 18 and have second fastener 20 that has one second bearing 21 on its free end 19.Described second fastener 20 inserts the free end 19 of described tubular push rod 17, and it is sealed fixing by shape here, thus the described free end 19 of described second fastener, 20 sealings.Described buffer 5 is installed on the described wash 2 by described second fastener 20, thereby described buffer 5 can rotate around second pivot axis 22 that also is parallel to described cylinder spin axis 16.
Described push rod 17 inserts the end 24 of housing 8 in push rod 17 1 sides with its end 23 in housing 8 inside.When in housing 8 during by desirable situation guiding push rod 17, the longitudinal central axis line 9 of housing 8 and the longitudinal central axis line of push rod 17 18 overlap.The motion that is installed in the push rod 17 in the housing 8 movably along the direction of described longitudinal central axis line 8,19 by a friction buffer unit 26 bufferings.Described friction buffer unit 26 is arranged in the housing cupule 27.Described housing cupule 27 has a bottom 28, and described bottom is penetrated by the end 24 of housing 8 in push rod 17 1 sides, and described housing cupule 27 and described housing 8 are one.Approximately extend to the middle part of housing cupule 27 in the end 24 of push rod 17 1 sides.
Described cover piece 39 also is cup-shaped, and on its bottom 40, has a guiding damping unit 41, described guiding damping unit is passed by the free end 19 of described push rod 17, and is used for the lateral shift of damper push rod 17 with respect to the longitudinal central axis line 9 of housing 8, is used to make push rod 17 centerings simultaneously.Described cover piece 39 has a diameter bigger than the diameter of cupule 27; This cover piece is also fixed thereon on cupule 27 along the direction pushing sleeve of push rod insertion 42.Combine with the outer wall of described cupule 27 by one and to form a back depressed part/heavy locking projection 43 of cutting and carry out described fixing.
To describe cover piece 39 and described guiding damping unit 41 below in detail.Described cover piece 39 comprises a tapered basic lid structure 44 of the direction along the bottom 40 of cover piece 39, and described bottom has along circumferentially even distribution vent hole 45.Described guiding damping unit 41 is arranged in the bottom 40 with push rod inlet 46; Described unit 41 is one with described basic lid structure 44.Fastening flank 48 extends along the longitudinal central axis line 47 that cover piece 39 overlaps with the longitudinal central axis line 9 of housing 8 from the end that does not attenuate of basic lid structure 44; Described fastening flank is along circumferentially distributing regularly and being connected with a retaining ring 49 with its free end, and described retaining ring has locking projection 43 on the sidewall within it near it is free-ended.
Described guiding damping unit 41 comprises several buffer elements 50 that form with described cover piece 39 that arrange circlewise.Particularly POM or polyamide one injection-molded form by plastic materials in described unit 41.Described buffer element 50 is with respect to the circumferentially distribution of rule of longitudinal central axis line 47 edges of cover piece 39, and the longitudinal central axis line 47 with respect to cover piece 39 is radially relative in twos respectively for buffer element 50 simultaneously.Each buffer element 50 has an internal ribs 51 and the U-shaped profile than the outside flank 52 of internal ribs 51 length, longitudinal central axis line 47 with respect to cover piece 39, described outside flank 52 is by the radius bend in an outside, and described internal ribs 51 is pressed the radius bend of an inboard, and described outer radius is greater than described inner radius.Described internal ribs 51 interconnects with the flank 53 that is connected of outside flank 52 by a bending, and surrounds one chamber 66 of opening vertically together.Described outside flank 52 also has the backstop 55 of a radially inner wedge shape, and this backstop limits internal ribs 51 radially outer mobilitys.Also can limit moving of flank without backstop.Must suitably select the stability and the geometrical shape of flank for this reason.Described guiding damping unit 41 longitudinal central axis line 47 with respect to cover piece 39 on 360 ° of angles being cut apart by a plurality of buffer elements 50 is rotational symmetric.The elastic characteristic of described buffer element 50 can be adjusted by its geometrical shape.Because the design of the single type of buffer element 50, its internal ribs 51 forms the inner loop 67 of a sealing, and outside flank 52 forms an external rings, and two rings interconnect by described connection flank 53.Push rod 17 slides on ring 67 with certain interval.
The mode of operation that below detailed description is had the buffer 5 of guiding damping unit 41.When tumbling-box washing machine 1 operation and since the cleaning-drum of wash 2 along the loading direction of its longitudinal central axis line 9,18,47 and that cause transverse to the imbalance of this direction on buffer 5.Below push rod 17 upper edge push rods being inserted the situation that the load excitation of 42 directions raises suddenly describes.On push rod 17 accurately along first kind of situation of the load excitation of the direction of the longitudinal central axis line 9 of housing 8 with encourage be not accurately longitudinally the direction of the medial axis 9 another kind of situation of carrying out be different, promptly have a lateral load component.
Stop position by the buffer shown in Fig. 25 sets out, and under the first kind of situation that push rod 17 is activated by load, push rod 17 inserts 42 direction along push rod and accurately moves along the direction of the longitudinal central axis line 9 of housing 8.When inserting, the longitudinal central axis line 18 of push rod 17 coincides with the longitudinal central axis line 9 of housing 8, does not have the lateral load component simultaneously.Because the friction between friction buffer lining 29 and push rod 17 outer walls, friction buffer lining 29 and contact pressure piston element 30 and fixed piston parts 31 are dragged along the insertion campaign that push rod inserts 42 directions by push rod 17 together.During inserting, fixed piston parts 31 slip over the end 24 of housing 8 in push rod 17 1 sides, load for simultaneously first spring 32.If the elastic load of first spring 32 that load increases has gradually surpassed the frictional force of effect between friction buffer lining 29 and push rod 17, the result can make the motion counter-rotating of friction buffer lining 29, contact pressure piston element 30 and fixed piston parts 31, thereby described first spring 32 partly loosens.Now friction buffer lining 29 moves along the direction opposite with push rod insertion part 42, and because frictional force, and the generation braking action of moving that push rod 17 is inserted 42 directions along push rod is until the counter-rotating that push rod 17 motions occur.Carry out because the motion edge and the push rod of push rod 17 and friction buffer lining 29 insert 42 opposite directions, first spring 32 more and more loosens, and second spring 33 is loaded cumulatively.If the elastic load of second spring 33 has surpassed the frictional force of effect between friction buffer lining 29 and push rod 17, can occur the motion counter-rotating of friction buffer lining 29, contact pressure piston element 30 and fixed piston parts 31 once more, simultaneously second spring 33 be loosened.Because the frictional force that between friction buffer lining 29 and push rod 17 outer walls, acts on, again to push rod 17 along and push rod insert 42 the opposite generation braking action of moving of direction, until the counter-rotating that occurs push rod 17 motions once more.
Described movement process can repeat several times.Therefore, the vibration that in housing 8, decays of push rod 17.Accurately do the time spent along the longitudinal central axis line 9 of housing 8 when the load excitation, 41 of guiding damping units play the effect that additionally guides push rod 17.Buffer element 50 is inoperative in this case.
For load excitation is not accurately along second kind of situation of longitudinal central axis line 9 effects of housing 8, and the load excitation can be resolved into component and another component transverse to longitudinal central axis line 9 along the longitudinal central axis line 9 of housing 8.For the sharing part of the load along the longitudinal central axis line 9 of housing 8, the mode of operation of buffer 5 is with identical in the situation described in first kind of situation.The sharing part of the load transverse to the longitudinal central axis line 9 of housing 8 causes the skew of the free end 19 of push rod 17 transverse to the longitudinal central axis line 9 of housing 8, and the longitudinal central axis line 18 of push rod 17 no longer overlaps with the longitudinal central axis line 9 of housing 8.Push rod 17 is cushioned by guiding damping unit 41 transverse to the skew of the longitudinal central axis line 9 of housing 8, thereby like this push rod 17 is carried out centering, so that the longitudinal central axis line 18 of push rod 17 overlaps with the longitudinal central axis line 9 of housing 8.
Below in the explanation to the mode of operation of guiding damping unit 41, suppose the lateral load component act on one with a plane that two relative backstops 55 of the longitudinal central axis line 47 of cover piece 39 and two radially relative buffer elements 50 intersect on.Because described lateral load component, internal ribs 51 radially outwards of buffer element 50 move.Connect flank 53 be loaded this moment, thereby form elastic load along the direction of the longitudinal central axis line 47 of cover piece 39.This elastic load plays braking action to any radial deflection of push rod 17, and causes the counter-rotating of moving of push rod 17 along longitudinal central axis line 47 directions of cover piece 39.In described movement process, the internal ribs 51 of radially relative buffer element 50 at first moves along the direction of the longitudinal central axis line 47 of cover piece 39, connect flank 53 simultaneously and also form elastic load, but this load is the radially outward effect.This can make that also push rod 17 is braked and cushions along moving of horizontal direction.The frictional loss that causes buffer function mainly produces in the material structure of buffer element 50 owing to lossy resiliently deformable.The importantly reduction of kinetic energy radially.Therefore described guiding damping unit 41 is used for damper push rod 17 transverse to all skews of the longitudinal central axis line 9 of housing 8 and be used for making push rod 17 centerings simultaneously after the lateral load component disappears.Have the situation of big amplitude for the lateral load component, any skew of push rod 17 is all limited by the projection backstop 33 of wedge shape.Therefore buffer 5 and guiding damping unit 41 make and obviously reduce at roller washing machine 1 noise in service, and have obviously reduced the wearing and tearing of buffer 5 owing to always make push rod 7 centerings.
Describe below in conjunction with Fig. 5 to 7 couple of one second embodiment of the present invention.Wherein the part that structure is identical have with first embodiment with reference to the identical reference number of its label that describes.Structure difference but the identical part of function has identical reference number adds an alphabetical a.The difference main with first embodiment is that friction buffer lining 29a rubs on the madial wall of housing 8a.For this reason, push rod 17a is designed to two-piece type, wherein first putter component 56 and the second fastener 20a are one, and one change with the diameter of the concentric blind hole 57 of the longitudinal central axis line 18 of push rod 17a, to be connected with frictional engagement by shape is sealed with one second putter component 58.Here the specific design of blind hole 57 is not elaborated.Described second putter component 58 is essentially tubulose, has the diameter littler than first putter component 56.The end 23a of second putter component 58 in housing 8a inside is provided with the push rod backstop 59 of the diameter with increasing of an annular, this backstop supporting guiding damping unit 41a.The end 60 of first putter component 56 has the recessed annular stop 61 of a wedge shape in the end 60 of push rod 17a be provided with the friction buffer lining 29a that is used for contact pressure parts 30a between the end 23a of housing 8a inside.Contact pressure piston element 30a is the ring that keeps friction buffer lining 29a from both sides of a U-shaped.In the wall portion of the longitudinal central axis line 9 of housing 8a, be provided with a radially outstanding contact pressure piston backstop 37a at contact pressure parts 30a.The first spring 32a push rod backstop 59 and contact pressure piston backstop 37a towards push rod 17a between the wall portion of the end 23a of housing 8a inside by preload.In contrast, the second spring 33a the backstop 61 of putter component 56 and contact pressure piston backstop 37a between the wall portion of the end 60 of putter component 56 by preload.The first fastener 12a and housing 8a press two-piece type and form, and described fastener 12a is sealed by shape to combine with the free end 10a of housing 8a.
Therefore the first fastener 12a constitutes the bottom 11a of housing 8a.To describe second putter component 58 and guiding damping unit 41a below in detail.Second putter component 58 has a tubular basic pusher structure 62, the end 63 of this basic pusher structure is tapered, which is provided with two fastening projections 64, described fastening projection is extended along the longitudinal central axis line 18 of push rod 17a, and each fastening projection has a fastening ridge 65.The push rod backstop 59 of dish is one with basic pusher structure 62 and guiding damping unit 41a.Inside at basic pusher structure 62 is provided with the various reinforcing elements that will not elaborate.
Guiding damping unit 41a is made up of six buffer element 50a that are circular layout, and described buffer element is radially relative each other, is spaced from each other, and distributes equably with respect to the longitudinal central axis line 18 of push rod 17a.Each buffer element 50a comprises an internal ribs 51a and an outside flank 52a, and described outside flank 52a is by an outer radius bending, and described internal ribs 51a presses an inner radius bending, and described inner radius is greater than described outer radius.Described internal ribs 51a comprises the backstop 55a that an edge outside flank 52a direction is extended at the middle part.Each buffer element 50a with respect to the longitudinal central axis line 18 of push rod 17a and the plane of roof intersection that belongs to the backstop 55a of buffer element 50a be symmetrical.Outside flank 52a connects flank 53a by one and is connected with described internal ribs 51a in both sides, thus the transition mutually seamlessly of each flank.Flank 51a, 52a and 53a surround the only chamber 66 of opening in the axial direction of two kidney shapes.Shown in Fig. 6 and 7, the outer diameter D of guiding damping unit 41a
SADetermine by two that the are in relaxation state mutual ultimate ranges of outside relatively flank 52a.Housing 8a has an inside diameter D
GI, satisfy D
SA＜D
GI, this means between flank 52a and housing 8a to have a gap all the time.
The mode of operation of buffer 5a and first embodiment's mode of operation is similar.Coming under the situation of actuate push 17a along the load of the direction of the longitudinal central axis line 9 of housing 8a by unexpected rising, unique difference is, friction buffer lining 29a since friction be bearing on the madial wall of housing 8a, and on the madial wall of housing 8a to guiding damping unit 41a channeling conduct.Exist under second kind of situation of lateral load component, make push rod 17a centering also by the skew of guiding damping unit 41a damper push rod 17a, and with respect to the longitudinal central axis line 9 of housing 8a.Suppose the lateral load component act on one with the plane of the roof intersection of the backstop 55a of the longitudinal central axis line 18 of push rod 17a and a buffer element 50a on, the outside flank 52a of corresponding buffer element 50a flexibly moves along the direction of the longitudinal central axis line 18 of push rod 17a, thereby forms the elastic load opposite with the lateral load component.Thereby, to the skew generation braking action of push rod 17a, until the motion counter-rotating of push rod 17a transverse to longitudinal central axis line 18.Outside flank 52a moves from longitudinal central axis line 18 radially outwards now.Because the frictional loss between frictional loss in the material of buffer element 50a and the madial wall of guiding damping unit 41a and housing 8a, the oscillating movement transverse to longitudinal central axis line 18 that push rod 17a carries out is attenuated, thereby after the lateral load component disappears, make longitudinal central axis line 9 centerings of push rod 17a again with respect to housing 8a.If the lateral load component has big amplitude, the motion of outside flank 52a is limited by backstop 55a.
Be elaborated below in conjunction with Fig. 8 and 9 pairs of third embodiment of the present invention.Wherein identical part have with first embodiment with reference to the identical reference number of its label that describes.Structure difference but the identical part of function has identical reference number adds an alphabetical b.With first embodiment's main difference structure at guiding damping unit 41b.Identical with the situation among first embodiment, guiding damping unit 41b is fixed on the cover piece 39b.Different with first embodiment, cover piece 39b is sleeved on the housing cupule 27, but is inserted into wherein, thereby the locking protuberance 43b that is arranged on the cover piece 39b extends radially out, thereby from respective recesses portion snap engagement inboard and housing cupule 27.Cover piece 39b comprises four buffer element 50b, described buffer element along circumferentially distribute equably and from the edge 68 of an annular radially to inner process.It is arc that but the spring arm of an internal ribs 51b and an elastic compression of connection flank 53b formation or arc ground inwardly stretch out.Internal ribs surrounds an only chamber 66b of opening vertically with non-circular cross-section shape.Be provided with a guiding rib 69 between two adjacent buffer element 50b, 68 to inner process, its internal surface 70 towards axis 47 has the shape of cross section around the segmental arc of axis 47 to described guiding rib from the edge.Near two diameter D that relative flank 51b is
BIExpression.Near two relative guiding ribs 69 diameter D
FIExpression.D is arranged
FI＞D
BI, this means that internal ribs 51b stretches out along the internal surface 70 that the direction of axis 47 surpasses guiding rib 69.Push rod 17b has certain interval towards flank 51b.Therefore when tilting, push rod 17b at first abuts on the internal ribs 51b.If it tilts more consumingly, by the guiding of internal surface 70 assurances to push rod 17b.Between a buffer element 50b and a guiding rib 69, be provided with a groove 71 that radially extends basically, thereby expose crooked connection flank 53b, and the distortion for flank 53b provides enough spaces when compression.
Mode of operation for guiding damping unit 41b can be with reference to the explanation to first embodiment.Favourable part is that described buffer element 50 can more easily be out of shape, because described buffer element does not connect by an internal interface cyclization 67 as among first embodiment.Stronger inclination provides stable guiding in 69 pairs of housings of guiding rib in addition.
Describe below with reference to Figure 10 and 11 pairs of fourth embodiment of the present invention.Wherein identical part have with first embodiment with reference to the identical reference number of its label that describes.Structure difference but the identical part of function has identical reference number adds an alphabetical c.Cover piece 39c has the design identical with the 3rd embodiment's cover piece 39b except place exception.Described unique difference is that internal ribs 51c is disconnected by a slit 72 at the middle part.In other words, buffer element 50c is formed by two segmental arcs 73, the shape of cross section of described segmental arc be mutually towards and free end limit the quadrant in described slit 72.A favourable part of this layout is, compresses 73 less power of needs of segmental arc vertically.Therefore can adopt for the more favourable firmer material of the remaining part of cover piece 39c,, and can not produce any change damping characteristics as POM.Can be with reference to the 3rd embodiment's explanation and thus also can be for the 4th embodiment's mode of operation with reference to first embodiment's explanation.
Describe below with reference to Figure 12 and 13 pairs of fifth embodiment of the present invention.Wherein identical part have with first embodiment with reference to the identical reference number of its label that describes.Structure difference but the identical part of function has identical reference number adds an alphabetical d.The 5th embodiment has and the design substantially the same according to second embodiment of Fig. 5 to 7.Unique difference is that outside flank 52d is disconnected by a slit 72d at the middle part, and elasticity is bigger thereby two parts of flank 52d become, and provides thus and the advantage identical according to the 4th embodiment of Figure 10 and 11.Identical with second embodiment, between adjacent buffer element 50d, be provided with a groove 71d, this groove 71d has adjacent flank 53d to limit.Different with second embodiment, backstop 55d is smooth, this means, it has the free-ended saddle portion 74 that can support flank 52d under the situation of strong compression.Can be for mode of operation with reference to explanation to first embodiment.
Claims (11)
1. one kind especially for the buffer that dries the formula roller washing machine, comprising:
A) housing (8 that is essentially tubulose; 8a), this housing has a longitudinal central axis line (9) and and is positioned at a push rod (17; 17a) the end (24 of side; 24a) and a free end (10; 10a);
B) push rod (17; 17a), this push rod is movably at described housing (8; 8a) be directed and from described push rod (17; 17a) side end (24; 24a) stretch out, this push rod has a longitudinal central axis line (18) and one at housing (8; 8a) Nei Bu end (23; 23a) and a free end (19; 19a);
C) be installed in housing (8; Free end (10 8a); 10a) last and push rod (17; Free end (19 17a); Fastener 19a) (12,20; 12a, 20a);
D) one is used at housing (8; 8a) and push rod (17; Produce the friction buffer unit (26 of a given friction buffer effect 17a); 26a); With
E) one is used for push rod (17; 17a) with respect to housing (8; Any lateral shift of longitudinal central axis line (9) 8a) cushions the guiding damping unit (41 with centering; 41a; 41b; 41c; 41d).
2. press the described buffer of claim 1 for one kind, it is characterized in that described guiding damping unit (41; 41a; 41b; 41c; 41d) be designed so that described push rod (17; 17a) can flexibly be bearing in described housing (8; 8a).
3. press the described buffer of claim 1 for one kind, it is characterized in that described guiding damping unit (41; 41a; 41b; 41c; 41d) comprise a plurality of, at least three buffer elements that are circular layout (50 particularly; 50a; 50b; 50c; 50d).
4. press the described buffer of claim 3 for one kind, it is characterized in that described buffer element (50; 50a; 50b; 50c; 50d) respectively with respect to a longitudinal central axis line (9; 18) radially relative in twos.
5. press the described buffer of claim 3 for one kind, it is characterized in that each buffer element (50; 50a; 50b; 50c; 50d) having at least one can be towards a longitudinal central axis line (9; 18) curved rib portion that moves (51,53 radial elastic; 52a, 53a; 51b, 53b; 51c, 53c; 52d, 53d).
6. press the described buffer of claim 5 for one kind, it is characterized in that flank (51,53; 52a, 53a; 52d, 53d) radially mobility by a backstop (55; 55a; 55d) limit.
7. press the described buffer of claim 5 for one kind, it is characterized in that at least one described flank (51; 52a; 51b) seal, thereby surround a chamber (66 that is positioned at described flank back; 66b; 66c; 66d).
8. press the described buffer of claim 5 for one kind, it is characterized in that at least one described flank (51c; 52d) be designed to two-piece type, thereby form a slit (72,72d).
9. press the described buffer of claim 1 for one kind, it is characterized in that, at two adjacent buffer element (50b; A guiding rib (69) is set 50c).
10. press the described buffer of claim 1 for one kind, it is characterized in that guiding damping unit (41a; 41d) be arranged on the end (23a that push rod (17a) is positioned at enclosure interior; 23d).
11. press the described buffer of claim 1, it is characterized in that guiding damping unit (41 for one kind; 41b; 41c) being arranged on housing (8) is positioned near the end (24) of push rod side and is connected on the housing (8).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004008843.8 | 2004-02-20 | ||
| DE102004008843 | 2004-02-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1657799A true CN1657799A (en) | 2005-08-24 |
| CN100430621C CN100430621C (en) | 2008-11-05 |
Family
ID=34813566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100084578A Active CN100430621C (en) | 2004-02-20 | 2005-02-21 | Damper with flexible guiding damping unit |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US7341132B2 (en) |
| EP (1) | EP1584730B1 (en) |
| JP (1) | JP4510664B2 (en) |
| KR (2) | KR101177567B1 (en) |
| CN (1) | CN100430621C (en) |
| AT (1) | ATE480657T1 (en) |
| DE (2) | DE102005005177A1 (en) |
| MX (1) | MXPA05001868A (en) |
| PL (1) | PL1584730T3 (en) |
| RU (1) | RU2369785C2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100460586C (en) * | 2006-05-30 | 2009-02-11 | 南京乐金熊猫电器有限公司 | Drum washing machine vibration-damping device |
| CN103276560A (en) * | 2013-06-04 | 2013-09-04 | 青岛鑫达伟业电子有限公司 | Shock absorber and washing machine with same |
| CN107287825A (en) * | 2016-04-12 | 2017-10-24 | 三星电子株式会社 | Vibration damper and the washing machine including vibration damper |
| CN107366704A (en) * | 2016-05-12 | 2017-11-21 | 苏斯帕有限公司 | Friction shock absorber |
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|---|---|---|---|---|
| EP1637640B1 (en) * | 2004-09-15 | 2008-03-05 | SUSPA Holding GmbH | Damper |
| DE102005038953A1 (en) * | 2005-08-16 | 2007-02-22 | Suspa Holding Gmbh | damper |
| MX2009009560A (en) * | 2007-03-08 | 2009-12-16 | Aweco Appliance Sys Gmbh & Co | Friction damper, particularly for drum washing machines. |
| US7549519B2 (en) | 2007-04-30 | 2009-06-23 | Suspa Incorporated | Free space damper |
| SI2406519T1 (en) * | 2009-03-13 | 2014-02-28 | Aksistem Elektromekanik Sanayi Ve Ticaret Ltd. Gebze Organize Sanayi Boelgesi Ihsan | Friction shock absorber |
| EP2725130B1 (en) | 2011-07-20 | 2016-04-27 | Aksistem Elektromekanik Sanayi ve Ticaret Ltd. Sti. | Shock absorber having an improved friction element |
| DE102011109362A1 (en) * | 2011-08-04 | 2013-02-07 | Thyssen Krupp Bilstein Suspension GmbH | Shock absorber for a vehicle in lightweight construction |
| SI2600026T1 (en) * | 2011-11-29 | 2015-10-30 | Aksistem Elektromekanik Sanayi Ve Ticaret Ltd. Sti. Gebze Organize Sanayi Boelgesi | Frictional vibration damper |
| ITPN20120047A1 (en) | 2012-08-14 | 2014-02-15 | Ro Sa Plast Spa | PERFECTED SHOCK ABSORBER |
| RU2523994C1 (en) * | 2013-07-23 | 2014-07-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Российский государственный университет экономики и сервиса" (ФГБОУ ВПО "ЮРГУЭС") | Washing machine of drum type |
| KR102315657B1 (en) * | 2015-03-16 | 2021-10-20 | 엘지전자 주식회사 | Laundry treatment apparatus |
| ITUB20161083A1 (en) * | 2016-02-25 | 2017-08-25 | C I M A Compagnia Italiana Molle Acciaio | Cage to hold a friction ring to be used in a damper for vertical axis washing machines |
| EP3812502B1 (en) * | 2019-10-24 | 2023-09-27 | Aksistem Elektromekanik Sanayi ve Ticaret Ltd. Sti. | An improved friction damper for dampening out vibrations generated by a laundry treating machine |
| CN112377553B (en) * | 2020-02-25 | 2022-03-29 | 北京京西重工有限公司 | Damper assembly and housing therefor |
| KR20230123799A (en) * | 2022-02-17 | 2023-08-24 | 삼성전자주식회사 | Washing machine and controlling method for the same |
| DE102022103793A1 (en) | 2022-02-17 | 2023-08-17 | Marelli Automotive Lighting Reutlingen (Germany) GmbH | LiDAR system and method for operating a LiDAR system |
| DE102022202661A1 (en) | 2022-03-17 | 2023-09-21 | Suspa Gmbh | Dampers, especially friction dampers |
| DE102022209864A1 (en) | 2022-09-20 | 2024-03-21 | Suspa Gmbh | Friction damper |
| KR20240062842A (en) * | 2022-11-02 | 2024-05-09 | 삼성전자주식회사 | Damper and washing machne including the same |
| KR20240062841A (en) * | 2022-11-02 | 2024-05-09 | 삼성전자주식회사 | Damper and washing machne including the same |
| IT202200025461A1 (en) | 2022-12-13 | 2024-06-13 | C I M A S P A Compagnia Italiana Molle Acciaio | PISTON FOR FRICTION SHOCK ABSORBERS FOR WASHING MACHINES WITH OPTIMIZED CONNECTION |
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| IT1286461B1 (en) * | 1996-12-09 | 1998-07-08 | Cima Comp It Molle Acciaio | CLUTCH SHOCK ABSORBER, PARTICULARLY DESIGNED FOR WASHING MACHINES OR SIMILAR |
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| DE10046712A1 (en) * | 1999-10-14 | 2001-04-19 | Suspa Holding Gmbh | Shock absorber esp. for washing machine with spinning operation with tubular housing with plunger guided sliding in this and measuring element is respectively connected with housing and plunger and their relative position |
| DE19959031C1 (en) * | 1999-12-08 | 2001-03-22 | Miele & Cie | Front-loading drum washing machine has oscillation dampers between washing unit and washing machine frame provided with plastics couplings and threaded fixing pins at either end |
| JP2003240048A (en) | 2002-02-20 | 2003-08-27 | Showa Electric Wire & Cable Co Ltd | Damper |
| EP1637640B1 (en) * | 2004-09-15 | 2008-03-05 | SUSPA Holding GmbH | Damper |
-
2005
- 2005-02-03 DE DE200510005177 patent/DE102005005177A1/en not_active Withdrawn
- 2005-02-03 EP EP05002215A patent/EP1584730B1/en active Active
- 2005-02-03 PL PL05002215T patent/PL1584730T3/en unknown
- 2005-02-03 AT AT05002215T patent/ATE480657T1/en active
- 2005-02-03 DE DE502005010198T patent/DE502005010198D1/en active Active
- 2005-02-16 MX MXPA05001868A patent/MXPA05001868A/en active IP Right Grant
- 2005-02-17 RU RU2005104271/12A patent/RU2369785C2/en active
- 2005-02-17 JP JP2005040923A patent/JP4510664B2/en active Active
- 2005-02-18 US US11/060,482 patent/US7341132B2/en active Active
- 2005-02-18 KR KR1020050013440A patent/KR101177567B1/en active IP Right Grant
- 2005-02-21 CN CNB2005100084578A patent/CN100430621C/en active Active
-
2012
- 2012-05-22 KR KR1020120053955A patent/KR101177678B1/en active IP Right Grant
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460586C (en) * | 2006-05-30 | 2009-02-11 | 南京乐金熊猫电器有限公司 | Drum washing machine vibration-damping device |
| CN103276560A (en) * | 2013-06-04 | 2013-09-04 | 青岛鑫达伟业电子有限公司 | Shock absorber and washing machine with same |
| CN107287825A (en) * | 2016-04-12 | 2017-10-24 | 三星电子株式会社 | Vibration damper and the washing machine including vibration damper |
| CN107287825B (en) * | 2016-04-12 | 2021-07-06 | 三星电子株式会社 | Vibration damper and washing machine including the same |
| CN107366704A (en) * | 2016-05-12 | 2017-11-21 | 苏斯帕有限公司 | Friction shock absorber |
| CN107366704B (en) * | 2016-05-12 | 2020-03-27 | 苏世博（南京）减振系统有限公司 | Friction damper |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101177567B1 (en) | 2012-08-27 |
| EP1584730A3 (en) | 2008-11-12 |
| RU2369785C2 (en) | 2009-10-10 |
| JP4510664B2 (en) | 2010-07-28 |
| KR20120079031A (en) | 2012-07-11 |
| EP1584730A2 (en) | 2005-10-12 |
| MXPA05001868A (en) | 2007-03-26 |
| DE102005005177A1 (en) | 2005-09-01 |
| RU2005104271A (en) | 2006-07-27 |
| JP2005233425A (en) | 2005-09-02 |
| EP1584730B1 (en) | 2010-09-08 |
| PL1584730T3 (en) | 2011-03-31 |
| ATE480657T1 (en) | 2010-09-15 |
| KR20060042965A (en) | 2006-05-15 |
| KR101177678B1 (en) | 2012-08-28 |
| DE502005010198D1 (en) | 2010-10-21 |
| CN100430621C (en) | 2008-11-05 |
| US20050183912A1 (en) | 2005-08-25 |
| US7341132B2 (en) | 2008-03-11 |
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Address after: German Art Dov Patentee after: Comfort TREASURE LIMITED Address before: German Art Dov Patentee before: Suspa Holdng GmbH |
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